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									                            CONTRA COSTA WATER DISTRICT

                               INSTRUMENT TECHNICIAN


NATURE OF WORK

Under general supervision, installs, maintains, calibrates, and repairs micro computer-based data
acquisition and control systems, including telemetering, monitoring, and process control
equipment and instrumentation.

DISTINGUISHING CHARACTERISTICS

This is a journey level classification. This class is distinguished from Crew Leader Maintenance
in that the Crew Leader Maintenance regularly directs work of Maintenance Mechanics, while
the Instrument Technician may direct the work of others on an as-needed basis.

EXAMPLES OF DUTIES

Installs, maintains calibrates, and repairs micro-computer based data acquisition and control
systems, including telemetering, monitoring and process control equipment and instrumentation.

Makes inspections and performs periodic preventative maintenance on various control, metering,
recording and display equipment; cleans, lubricates, calibrates and/or adjusts equipment as
needed.

Troubleshoots and diagnoses electronic, electromechanical and pneumatic instrumentation
malfunctions; completes component level repairs or advises system contractors of other repair
requirements as appropriate.

Uses software diagnostic routines and tests equipment to verify and/or adjust control system
equipment according to manufacturer's recommendations.

Installs, maintains and repairs multi-channel system radio and telephone, and calibrates
microwave electronic equipment, antennas, battery backup power supplies and grounding
systems including connections to existing systems.

Reads and interprets wiring schematics, mechanical drawings and specifications as necessary to
install, service and/or repair equipment in accordance with related regulations.

May make estimates of labor, materials and supplies necessary for the performance of specific
assignments.

May direct the work of other maintenance employees as required and ensures that safety
precautions are observed.
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Instrument Technician
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Keeps records and makes verbal and written reports of work performed.

May inspect relevant work performed by contractors installing new electronic equipment in
District facilities.

Installs, maintains, monitors, overhauls, calibrates and tests a wide variety of pneumatic and
electronic recording, indicating, controlling, telemetering and other test instruments including
but not limited to:

              communication systems
              digital and/or analog instrumentation
              printed circuits
              magnetic flow meters
              differential pressure transducers
              multiplex equipment
              flow meters
              process control equipment
              loss-of-head indicators
              level indicators
              solid state equipment
              alarm circuits and systems
              pressure and temperature regulators, gauges and recorders
              chemical feeder controllers
              pneumatic controllers and regulators
              telemetering receivers and transmitters
              programmable logic controllers

Performs other related duties as assigned.

DESIRABLE QUALIFICATIONS

Any combination of education and experience which has provided the knowledge and abilities
listed below. A typical combination is completion of the twelfth grade, or its equivalent, and four
years of experience performing skilled work in both mechanical and electromechanical repairs,
or electronic circuitry repair, at least two years of this time having involved work in industrial
Instrumentation.
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Instrument Technician
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KNOWLEDGE AND ABILITIES:

Knowledge of:

        Methods, practices and tools used in maintaining, repairing, testing and calibrating
        electromechanical recording and metering instruments, process control equipment, and
        mechanical linkage and telemetering systems;
        Safety practices, precautions and procedures pertaining to the work;
        Computer based data acquisition and control systems;
        Microwave point-to-point and point-to-multi-point channel radio data communications
        equipment;
        Telephone line interface for data communications; software diagnostic routines and test
        equipment;
        Hydraulic and pneumatic principles related to the operations of recording and metering
        instruments and flow in open channel and closed loop systems;
        Principles, techniques and operations involved in water treatment and distribution;
        Common equipment, tools and materials used in electronic and instrument maintenance
        and repair,
        Applied principles of electronic and electrical theory, including ohm's law; basic D.C.
        circuit analysis; A.C. circuit analysis;
        Applicable mathematics including algebra, geometry and trigonometry as related to
        specific work applications.

Ability to:

        Diagnose mechanical, electrical and electronic               difficulties/malfunctions   in
        instrumentation, control and telemetering systems;
        Read and interpret wiring schematics, diagrams, mechanical drawings and specifications;
        Make repairs to electronic, pneumatic, electromechanical metering and process control
        instruments;
        Estimate labor and materials to effect repair or replacement as needed;
        Direct the work of other employees;
        Keep accurate records and make oral and written reports; \
        Establish and maintain effective working relationships with others;
        Perform skilled maintenance, calibration and repair of a variety of plant, pneumatic,
        electronic, and electro-mechanical instrumentation;
        Lift and carry tools, supplies, and equipment which may exceed 50 pounds;
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Instrument Technician
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      Use a variety of tools, including a variety of test equipment as required;
      To work independently, efficiently, and accountably under general direction;
      To install metal or PVC electrical conduit;
      To climb antenna poles of heights ranging from approximately 20’ to 60'.

Other Requirements:

      Physical characteristics to perform the critical and important duties of the job.

      A valid California Driver's License and a satisfactory driving record.


Adopted: August 1, 1988
Retitled:
Revised:

Approved: ________Director of Personnel

								
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